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The "10" is the ball diameter in millimeters. The "3000" is the force in kilograms force. The hardness may also be shown as XXX HB YYD 2. The XXX is the force to apply (in kgf) on a material of type YY (5 for aluminum alloys, 10 for copper alloys, 30 for steels). Thus a typical steel hardness could be written: 250 HB 30D 2. It could be a ...
USRA Light Santa Fe. Factor of adh. The USRA Light Santa Fe was a USRA standard class of steam locomotive designed under the control of the United States Railroad Administration, the nationalized railroad system in the United States during World War I. These locomotives were of 2-10-2 wheel arrangement in the Whyte notation, or 1′E1′ in UIC ...
1,372 mm (4 ft 6 in) The Keio 5000 series ( 京王5000系 ) is an electric multiple unit (EMU) train type which was formerly operated by Keio Corporation in Japan and first introduced in 1963. Built in batches by Nippon Sharyo , Tokyu Car Corp , and Hitachi , it was the recipient of the fourth Laurel Prize of the Japan Railfan Club.
The Tokyu 8500 series (東急8500系, Tōkyū 8500-kei) is a commuter electric multiple unit (EMU) train type operated by the private railway operator Tokyu Corporation on the Tokyu Den-en-toshi Line and Tokyu Oimachi Line in the Tokyo area of Japan from 1975 until 2023, and the Jabodetabek area of Indonesia since 2006.
Trinitrotriazine, or 2,4,6-trinitro-1,3,5-triazine, is a theoretical explosive compound. Synthesis of this compound has been elusive despite its simple structure, [1] [2] as conventional nitration of triazine becomes increasingly more difficult as more nitro groups are added. A successful route would more likely proceed by trimerisation of ...
4-6-2 locomotives. Front of locomotive at left. Wikimedia Commons has media related to 4-6-2 locomotives. The main article for this category is 4-6-2. Locomotives classified 4-6-2 under the Whyte notation of locomotive axle arrangements. The equivalent UIC classification of locomotive axle arrangements is 2C1 or 2'C1'.
2,4,5-Trichlorophenoxyacetic acid (also known as 2,4,5-T ), a synthetic auxin, is a chlorophenoxy acetic acid herbicide used to defoliate broad-leafed plants. It was developed in the late 1940s, synthesized by reaction of 2,4,5-Trichlorophenol and chloroacetic acid. It was widely used in the agricultural industry until being phased out ...
[3] mTBD, like 1,5,7-triazabicyclo[4.4.0]dec-5-ene and other guanidine super bases, can be used as a catalyst in a variety of chemical reactions. [4] It also reacts with CO 2, [5] which could make it useful for carbon capture and storage. [6] When brought into contact with some acids, mTBD reacts to form an ionic liquid.